The Slovakia-based headquarters of <a href="http://www.strabag.sk/" target="_blank">Strabag</a> is an energy-efficient building - with an upside down house smashed into its side! The European construction company hired artist <a href="http://www.erwinwurm.at/" target="_blank">Erwin Wurm</a> to add his signature work "House Attack" to the outside of their building. Designed by MHM Architects, SKC Bratislava is modern office building that takes advantage of <a href="http://inhabitat.com/tag/geothermal">geothermal heating and cooling</a> and is filled with art. The horizontal tower is clad in green low-e glass and it provides office space for 530 people in Slovakia's capital, Bratislava.

The six story building is perched on stilts to create a shaded plaza and entrance below the building.

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SKC Bratislava-MHM Architects

Glass in various shades of green clad the building and provide sun and sound protection without sacrificing daylight.

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SKC Bratislava-MHM Architects

The building's narrow floor plan allow for every office space to have access to light, views and natural ventilation.

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SKC Bratislava-MHM Architects

The building's art-filled lobby.

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SKC Bratislava-MHM Architects

Rooftop gardens provide space for relaxation and events with views of the surrounding area.

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SKC Bratislava-MHM Architects

Finally, the energy efficient office is heated and cooled with a geothermal well system and a water-water heat pump.

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SKC Bratislava-MHM Architects

The Slovakia-based headquarters of Strabag is an energy-efficient building - with an upside down house smashed into its side! The European construction company hired artist Erwin Wurm to add his signature work "House Attack" to the outside of their building. Designed by MHM Architects, SKC Bratislava is modern office building that takes advantage of geothermal heating and cooling and is filled with art. The horizontal tower is clad in green low-e glass and it provides office space for 530 people in Slovakia's capital, Bratislava.